FERGANASAURUS VERZILINI, GEN. ET SP. NOV., A NEW NEOSAUROPOD (DINOSAURIA, SAURISCHIA, SAUROPODA) FROM THE MIDDLE JURASSIC OF FERGANA VALLEY, KIRGHIZIA
FERGANASAURUS VERZILINI, GEN. ET SP. NOV., A NEW NEOSAUROPOD (DINOSAURIA, SAURISCHIA, SAUROPODA) FROM THE MIDDLE JURASSIC OF FERGANA VALLEY, KIRGHIZIA
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费尔干萨龙维齐利尼将军
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
A. Averianov
中科院分区：
文献类型：
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作者：
V. Alifanov;A. Averianov
摘要：本文描述了吉尔吉斯斯坦中侏罗世（Callovian） Balabansai组的部分蜥脚类骨骼，包括2个背椎骨和16个尾椎骨、骨盆和肢骨，并将其称为Ferganasaurus verzilini， gen. et sp. 11 .。脚骨，除了黄芪，是未知的。Ferganasaurus与新蜥脚类动物Jobaria，梁龙科（Nemegtosauridae, Rebbachisauridae， Diplodocidae和Dicraeosauridae）和Macronaria （Camarasaurus， Haplocanthosaurus和Titanosauriformes）形成了一个尚未解决的分支。Ferganasaurus的新蜥脚类特征包括：5节骶骨，掌骨近端近三角形，掌骨近端复合u形关节面，胫骨近端近圆形，黄芪上升突延伸至黄芪后缘，前视黄芪呈楔状。Ferganasaurus是已知最古老的新蜥脚类动物之一，具有新蜥脚类动物不常见的两个原始特征（股骨轴呈s形曲线，股骨第四粗隆呈刀刃状，尖端渐尖）。
Abstract A partial sauropod skeleton from the Middle Jurassic (Callovian) Balabansai Formation in Kirghizia, comprising two dorsal and 16 caudal vertebrae, pelvis and limb bones is described and referred to Ferganasaurus verzilini, gen. et sp. nov. The manus is known only from drawings as original material has been lost; foot bones, except the astragalus, are unknown. Ferganasaurus forms an unresolved polytomy with neosauropods Jobaria, Diplodocoidea (Nemegtosauridae, Rebbachisauridae, Diplodocidae, and Dicraeosauridae), and Macronaria (Camarasaurus, Haplocanthosaurus and Titanosauriformes). The neosauropod characters of Ferganasaurus include five coossified sacral vertebra, metacarpal proximal ends subtriangular, composite proximal articular surface of metacarpus U-shaped, tibia with subcircular proximal end, astragalar ascending process extends to the posterior margin of the astragalus, and astragalus wedge-shaped in anterior view. Ferganasaurus is one of the oldest known neosauropods, and possesses two primitive characters unusual for a neosauropod (femur shaft with sigmoid curve, and fourth trochanter of the femur blade-like with acuminate apex).